Then download the install tool. We use the open-source tool ZXPInstaller to install the plug-in. You can download and install the ZXPInstaller from here: http://zxpinstaller.com/

Note: Mac OS X users need to allow the tool to run for the first time, so click Open when you see the message below. If the installer won’t run and a warning is displayed instead, then navigate to the Applications folder, right-click (or Command-click) on ZXPInstaller, and select Open from the menu that appears.

Run the ZXPInstall tool and drag the plug-in file you downloaded earlier into the window like the one below at left. After a few moments, you will see the status message seen below at right.

Close the ZXPInstall tool.

Open the plug-in in InDesign from the Windows menu under Extensions and log in to your Collaborate account using the email or account name for your issuu account.